ProtoWe provides SLA/SLS/SLM 3D printing prototyping services since 2016. Now we are leading in SLA 3D printing prototyping in China. By 2020, ProtoWe has 100+ SLA printers, and the max whole print size is as long as 1,600 mm. We have 10 sets of HP SLS printers to print PA/Nylon material or with GF. The PA parts have very micromish and pyknotic surface and great strength. For SLM printing, we have 3 sets printer, main print some mold steel and stainless steel.